Generally, the HDMI connections are used. For viewing 3D Blu-ray content, it is important to insure that all cables and all related devices (such as an A/V receiver) are HDMI v1.4a compliant. Component video can also be used for 2D content, if needed. The D-Sub/15-Pin connection is an analog connection for a computer.
HDMI Input/ Output Setting and Basic Calibration for JVC Projectors:
In order to get the best picture with a home theater display, correct connection and proper calibration can make all the difference. Here's a look at how you do this with a current generation JVC Procision projector.
First, Some Background on HDMI:
HDMI is a digital signal connection used for transmitting audio and video signals. For video, shades of gray (and color shades) are represented by the digital value range of 0 - 255 (8-bit video). Fundamentally, value 0 is black, value 255 is white, and the values between are levels of gray. Beyond this there are three types of HDMI video signals:
- STANDARD: Uses a video range of 16-235 (16 being the blackest black and 235 being the whitest white). This is the most common signal type for consumer video devices such as Blu-ray players and HD cable and satellite set-top boxes.
- ENHANCED: Uses a video range of 0-255. This is the range for connecting a compatible computer graphics card. This is also used with some new Blu-ray players.
- SUPER WHITE:Uses a video range of 16-255 (16 being the blackest black and 255 being the whitest white). This is used with some new Blu-ray players, video games or a compatible computer graphics card.
HDMI Settings for JVC Projectors:
The JVC DLA-X35/DLA-X55R/DLA-X75R and DLA-X95R have a choice of three HDMI input ranges, which correspond exactly to the above definitions for Standard, Enhanced and Super White. It is important to choose the right one. If the projector setting does not properly match the video source, you might experience crushed blacks, clipped whites or a washed out (overly grey) image.
For connection to a traditional video source, such as a Blu-ray player or a set-top box, the STANDARD mode is most common. When in doubt, or when using multiple devices such as an A/V receiver and a Blu-ray player, STANDARD is generally the best setting to use.
The ENHANCED mode should only be used when connecting a computer or a video source that you have verified as passing an ENHANCED signal.
The SUPER WHITE mode should only be used when connecting a computer or a video source that you have verified as passing a SUPER WHITE signal.
Remember that a receiver with HDMI switching may affect these settings. If you are having problems, take the receiver out of the signal path and run the source direct to the projector and see if that solves the problem.
- If you are not sure of the output signal of a source device, use a calibration disc with test patterns to figure it out. Then, using the same calibration disc, set the deepest black and the brightest white to match the output range you have chosen.
Two examples of getting it wrong:
If the video source is set to STANDARD and the projector is set to ENHANCED, the deepest black parts of the picture and the brightest white parts of the picture will look grey. If you can't get a good black level with a JVC projector, this is the most likely culprit.
If the video source is set to ENHANCED and the projector is set to STANDARD, the blacks will be crushed (i.e. there will be no detail in the dark/shadow areas. Everything in that range will be too black). Also, whites will be crushed/clipped (there will be no detail in the highlights. Everything in that range will be too white). Just as not enough black is a problem, too much black is also a problem, and it is very likely that there is also too much white.
All models offer 12V trigger, which is used to control a motorized screen or a motorized anamorphic lens. RS232 is offered on all models for system control, and LAN connection is included with the DLA-X35/DLA-X55R/DLA-X75R and DLA-X95R as an additional system control option. The 3D Synchro connection on all models is used for connecting the PK-EM1 3D I/R emitter to synch the active shutter glasses to the projector when viewing 3D content.